Hope someone has an answer before I shell out money for ANOTHER new carborator. Genset didn't run when I bought my 2014 Winnagago Sighseer, No problem got it a good price and expected to put some money in it. $300 dollars for a carborator and the genset is running perfectly. That was 2 years ago. I start and exercise the genset every month for at least 45- 60 minutes. Last time out genset sarts and runs fine but after about 15 miutes it begins to back fire spit and quits. At first this was only under a load such as AC running. Now it has begun this back fire without being under a load. An RV repairman told me that the carborator was bad again because I should have put in a gas cut off. He said that gas left standing in carb deteriorates the carb and is the cause of the problem. Ever hear of this? I sure hate to shell out for another carborator so soon. I really don't know anything about these genertors but the rest of the coach is perfect.

He's correct in that you need to add a shutoff inline and kill the fuel flow, then run it dry, before letting it sit up. It can probably be cleaned with carb cleaner if it isn't bad and fixed with a rebuild kit if it's worse, and someone takes the time. Might be cheaper to buy a new carb then pay for the labor, though.You also need to run something like STA-BIL if you're not running through an entire tank every month or so.

Gas left in the carb doesn't "deteriorate the carb", it rots and turns into crud that plugs the carb passages. The carb doesn't necessarily need replaced, a decent mechanic should be able to clean it and put a repair kit in it for a lot less than $300!Once you get it running, put Sta-Bil in the gas tank, then run the engine and the generator to get it well distributed. That's what I do, and I have never had a carb problem since I started doing it. Follow the instruction on the label.

are you the least bit Handy ?i would get 3-5gal can of gas, a can of Sea-Foammix the sea foam in the gasdisconnect the fuel hose inlet to the fuel pumpconnect a piece of fuel hose and put in the gas canget generator started run until gas is gone, 4 hrs ? or more,may have to get some fuel into carb let soak overnightthen run it it the next day, keep it running until it smooths out and runs rightinstall fuel cut offin RVs being stored sta-bil in the fuel is a good ideafor preparation, also buy a spray can sea foam, on the day before remove fuel hose from carb and insert spray nozzle and fill carb with sea foam spraylet it set overnight, before running the sea-foam gas thru the carb and engine, NOTE expect a lot of smoke, that is normal when using sea foam

Make and model of the genset would help.If it has a fuel pump that could be the issue.

I have a 96 Southwind, original Onan 5000 with the original carburetor.I run it under load about once a month. Have you changed the carburetor fuel filter?Try a can of spray Seafoam. Spray it into the carburetor while it's running and leave it sit for a couple hours.Try the simple things before buying a new carburetorDon't use that RV repairman.

Genset won't keep running | Good Sam Community

theoldwizard1
Explorer II
Jan 05, 2018
Make and model of the genset would help.

If it has a fuel pump that could be the issue.
MrWizard
Moderator
Jan 05, 2018
are you the least bit Handy ?

i would get 3-5gal can of gas,
a can of Sea-Foam
mix the sea foam in the gas
disconnect the fuel hose inlet to the fuel pump
connect a piece of fuel hose and put in the gas can
get generator started run until gas is gone, 4 hrs ? or more,
may have to get some fuel into carb let soak overnight
then run it it the next day, keep it running until it smooths out and runs right
install fuel cut off
in RVs being stored sta-bil in the fuel is a good idea
for preparation, also buy a spray can sea foam,
on the day before remove fuel hose from carb and insert spray nozzle and fill carb with sea foam spray
let it set overnight, before running the sea-foam gas thru the carb and engine,
NOTE expect a lot of smoke, that is normal when using sea foam
mowermech
Explorer
Jan 05, 2018
Gas left in the carb doesn't "deteriorate the carb", it rots and turns into crud that plugs the carb passages. The carb doesn't necessarily need replaced, a decent mechanic should be able to clean it and put a repair kit in it for a lot less than $300!
Once you get it running, put Sta-Bil in the gas tank, then run the engine and the generator to get it well distributed. That's what I do, and I have never had a carb problem since I started doing it. Follow the instruction on the label.
n0arp
Explorer
Jan 05, 2018
He's correct in that you need to add a shutoff inline and kill the fuel flow, then run it dry, before letting it sit up. It can probably be cleaned with carb cleaner if it isn't bad and fixed with a rebuild kit if it's worse, and someone takes the time. Might be cheaper to buy a new carb then pay for the labor, though.

You also need to run something like STA-BIL if you're not running through an entire tank every month or so.

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